用快速傅立叶变换(FFT)求解磁性薄膜的退磁场

Demagnetizing Field Computation of Magnetic Thin Film by Fast Fourier Transform(FFT)

详细阐述了用快速傅立时变换法求解磁性薄膜的退磁场的原理，具体计算了实例，并与磁偶极子法作了比较。

The theory of computational method for demagnetization field of magnetic thin film by FFT is presented; this method is used to calculate the demagnetization field of some samples and compared with magnetic dipole method.Keywrods: fast fourier transform, demagnetizing field